Katniss Everdeen
Katniss Everdeen is the main character in the book and movie series THe Hunger Games. She is the girl tribute for District 12 in the 74th Annual Hunger Games. She and Peeta Mellark are the victors of the Hunger Games so Katniss also participates in the Quarter Quell, the 75th Hunger Games. In the Hunger Games movies Katniss is portrayed by Jennifer Lawrence. Gale Hawthorne calls her Catnip because when he met Katniss he thought her name was Catnip. I don't know why he thought someone's name could be Catnip, but then again Katniss is named after an edible plant root so...
Katniss Everdeen in the 2nd book/movie "Catching Fire"